CN207333212U - A kind of intelligent all-weather photovoltaic water pump water system - Google Patents
A kind of intelligent all-weather photovoltaic water pump water system Download PDFInfo
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- CN207333212U CN207333212U CN201721161623.2U CN201721161623U CN207333212U CN 207333212 U CN207333212 U CN 207333212U CN 201721161623 U CN201721161623 U CN 201721161623U CN 207333212 U CN207333212 U CN 207333212U
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Abstract
It the utility model is related to supply equipment field; especially a kind of solar water pump water system; including photovoltaic array, DC/DC converters, storage battery, Stm32 controllers, direct current generator, water pump, liquid level sensor, water storage device and WIFI module, it is characterised in that further include detection protection circuit, back-emf sensing circuit, isolation circuit, drive circuit；Photovoltaic array is connected with DC/DC converters and supplies electricity to direct current generator and storage battery; the output terminal access isolation circuit of Stm32 controllers; the input terminal of the output termination drive circuit of isolation circuit; the output termination direct current generator of drive circuit; water is delivered in water storage device by water pump by pipeline; detection protection circuit includes voltage, electric current and water level detection circuit, and detection protection circuit, back-emf sensing circuit, WIFI module and Stm32 controllers connect.The system possesses intelligence, and equipment is monitored and is regulated and controled, simple to operation.
Description
Technical field
The utility model designs a kind of intelligent all-weather photovoltaic water pump water system, belongs to solar water pump field, mainly
Be a kind of intelligence, low-power consumption, it is round-the-clock the features such as optical, mechanical and electronic integration system.
Background technology
Mostly be that sunlight enriches area now in remote districts of the short of electricity without electricity, only solar energy be everywhere it is desirable, take it
Inexhaustible resource.Undoubtedly many people notice goes the water delivery means right and wrong of driving water pump often with suction by solar energy as the energy
Gravitation, its research and development are with application for solving earth's surface water shortage area, outlying district, the agricultural water of poverty-stricken area, animal husbandry
With water and domestic water, there is especially important meaning.But the trans-utilization of solar energy becomes difficult point always.On the one hand, the sun
Energy battery is a non-linear DC power supply, its output voltage and electric current depend not only on the performance parameter of itself, and also and the sun
The factors such as irradiation level, operating temperature and load characteristic are related.On the other hand by Changes in weather, solar energy collecting is not uniformly steady
Fixed, and the water pump of various different sizes is required to stable power supply and is charged or carried out defeated to solar water pump
Water will be manually entered device context and equipment is regulated and controled, time-consuming and laborious.
Utility model content
The utility model for overcome the deficiencies in the prior art, existing solar water pump be all " begin work at sunrise, sunset and
Breath ", once running into sunlight rainy days, pedal system can not work on, and charged or carried out defeated to solar water pump
Water will be manually entered device context and equipment is regulated and controled, it is time-consuming and laborious the problem of, it is proposed that a kind of intelligent solar water
Pump, for giving existing water pump system STM32 controllers to control, is automatically controlled by the water level sensor up and down of water storage apparatus and is
The start and stop of system, controller connection WIFI module, can remotely be controlled in real time by operation of the intelligent terminal to solar water pump
System.
In order to solve above-mentioned technical problem, the utility model proposes basic technical scheme be：
A kind of intelligent all-weather photovoltaic water pump water system, it is characterized in that including photovoltaic array, DC/DC converters, electric power storage
Pond, STM32 controllers, direct current generator, water pump, liquid level sensor, water storage device and WIFI module, it is characterised in that further include inspection
Survey protection circuit, back-emf sensing circuit, isolation circuit, drive circuit；The photovoltaic array is connected simultaneously with DC/DC converters
Direct current generator and storage battery are supplied electricity to, the output terminal of the STM32 controllers accesses isolation circuit, the isolation circuit
The input terminal of output termination drive circuit, the output termination brshless DC motor of drive circuit, the water pump will by pipeline
Water is delivered in water storage device, and detection protection circuit includes voltage detecting circuit, current detection circuit and water level detecting
Circuit, detection protection circuit, back-emf sensing circuit, WIFI module and STM32 controllers connect.
The powering mode has the function of intelligent selection, i.e., in the case where having storage battery and having photovoltaic cell, automatically
Select power supply mode and Charge Management is carried out to storage battery.
The STM32 controllers are by the detection to battery charging current and voltage, to select suitable charging control
Molding formula while STM32 controllers judge the working status of photovoltaic cell, to decide whether to carry out MPPT controls, pass through adjusting
The duty cycle of pwm signal, adjusts the size of dc-dc control output voltage, output voltage is worked in maximum power point
On voltage, highly efficient power output is obtained.
The water level detecting has the detection of the high-low water level of water source level sensing and water tank.Water source level sensing is real-time
Water source level condition is detected, pump motor is caused to damage to prevent dallying for a long time.The high-low water level detection of water tank is used for water
Position is too low when touching low water level sensor, water level is excessive send when touching high water level sensor start, stop water supply information to
Stm32 controllers.
The motor uses DC brushless motor, and pump uses centrifugal pump.
The WIFI module wireless connection intelligent terminal, for the information such as the water of water pump and electricity to be sent to intelligence
Terminal is monitored.
The advantages of the utility model and good effect are：
Since solar cell is a non-linear DC power supply, its output voltage, electric current depend not only on the property of itself
Can parameter, it is also related with the factor such as intensity of sunshine, operating temperature and load characteristic, therefore, it is necessary between considering various parts
Matching so that the efficiency highest of system, operation is more reliable, stablizes.A kind of photovoltaic with maximal power tracing designed herein
Electricity generating controller, voltage, current sample to main circuit, are sent to STM32 controllers, by adjusting pwm signal by sampled signal
Duty cycle, adjust dc-dc control output voltage size, output voltage is worked on maximum power point voltage,
Improve the utilization rate of photovoltaic array.
2. intelligent power supply model selection function, i.e., in the case where having storage battery and having photovoltaic cell, automatically select power supply
Mode and to storage battery carry out Charge Management.I.e. when sunlight is more sufficient, photovoltaic cell is selected individually to power；Sunlight is weaker
When, photovoltaic cell box lead-acid accumulator is powered at the same time；When rainy days or evening, storage battery is individually powered.It should be noted that one
Photovoltaic cell is determined after energy needed for water lift is met, unnecessary energy must charge to storage battery.It is so designed that and not only improves
Energy saving, and facilitate people's life.
3. STM32 controllers are employed as main control chip, using Cortex-M4 cores ARM chips STM32F407ZGT6 as base
Plinth, builds minimum development system.The chip clock frequency can reach 168MHz when operating voltage is 3.3V, in STM32F systems
Performance highest in row, Flash sizes are 1024K, and fully sufficient receiving this Control System Software program, also allows for the upgrading after
Processing.Compared with other 32 bit processors, or even such as AMR7, ARM9, DSP etc., the power consumption of this chip is minimum.STM32
Controller need to realize maximal power tracing control, the control of brshless DC motor, the control of water pump slide system, the anti-spilled control of water tank
System and WIFI module realize intelligent terminal remotely monitoring etc..To sum up, the ARM chips are relatively specific for as photovoltaic water pump
The main control chip of control system, also allows for a series of updating operation such as networking, the intelligence of photovoltaic water pump control system in the future.
Brief description of the drawings
Fig. 1 is intelligent all-weather photovoltaic water pump water system hardware block diagram；
Fig. 2 is intelligent all-weather photovoltaic water pump water system control block diagram；
Embodiment
A kind of intelligent all-weather photovoltaic water pump water system, it is characterized in that including photovoltaic array, DC/DC converters, electric power storage
Pond, STM32 controllers, direct current generator, water pump, liquid level sensor, water storage device and WIFI module, it is characterised in that further include inspection
Survey protection circuit, back-emf sensing circuit, isolation circuit, drive circuit；The photovoltaic array is connected simultaneously with DC/DC converters
Direct current generator and storage battery are supplied electricity to, the output terminal of the STM32 controllers accesses isolation circuit, the isolation circuit
The input terminal of output termination drive circuit, the output termination brshless DC motor of drive circuit, the water pump will by pipeline
Water is delivered in water storage device, and detection protection circuit includes voltage detecting circuit, current detection circuit and water level detecting
Circuit, detection protection circuit, back-emf sensing circuit, WIFI module and STM32 controllers connect.
Photovoltaic array is made of solar cell series and parallel, and solar energy is directly converted to direct current energy, feed pump of powering
And storage battery.
Storage battery uses lead-acid accumulator, to store sunshine it is strong when superfluous energy and water air pump inoperative on daytime when
Photovoltaic array produce energy, it is ensured that rainy days sunlight deficiency or night water pump can work on, overcome " begin work at sunrise, day
Fall and cease " operating mode.
Voltage, current detection circuit realize the function of sampling photovoltaic array voltage and electric current, electric current and voltage be system most
The measured value of most critical in high-power tracing control, is sent to stm32 controllers by the voltage of sampling, current signal, passes through tune
The duty cycle of pwm signal is saved, the size of dc-dc control output voltage is adjusted, output voltage is worked in maximum power
On point voltage, the utilization rate of photovoltaic array is improved.Wherein DC/DC converters use step-down/up type conversion circuit, and the circuit is main
It is made of field-effect tube, inductance, capacitance and diode.
Water level detecting has the detection of the high-low water level of water source level sensing and water tank.Water source is equipped with liquid level sensor, real
When detect water source level condition, when liquid level sensor detects that liquid level is too low, send a signal to STM32 controllers control water pump
Stop operation and alarm.Water tank container top and lower position are respectively provided with high and low water level sensor, are touched when water level is too low
Startup information of drawing water is sent during low water level sensor and gives STM32 controllers, water level is excessive to be sent when touching high water level sensor and stop
Only water supply information prevents from overflowing waste water resource to STM32 controllers.
Isolation circuit uses light-coupled isolation mode, realizes the electrical isolation of forceful electric power and light current.Optocoupler is situated between using light as coal to be passed
The number of delivering letters, can effectively inhibit system noise, eliminate the interference of earth-return circuit, and PWM ripples are exported by controller, are connected to NAND gate,
High speed photo coupling is reconnected, is sent after Phototube Coupling to drive circuit, then drives motor to drive water pump.
Transverter is generally divided into upper arm (q1, q3, q5)/underarm (q2, q4, q6) even by 6 power transistors (q1~q6)
Connect the switch that motor flows through electrical-coil as control.Control unit then provides PWM (pulse width modulation) and determines power transistor
Switching frequency and the opportunity of transverter commutation.
WIFI module is connected on STM32 controllers, wireless connection intelligent terminal, for the water of water pump, electricity to be believed
The information such as breath, water level, the voltage and current that detects are sent to intelligent terminal and are monitored, while start or stop by intelligent terminal
Only solar water pump carries out water lift or charging.
Counter electromotive force detection circuit finds stator coil back-emf zero crossing using dummy neutral position detection method.Cause
Brshless DC motor for the system using position-sensor-free, so the main function of counter electromotive force detection module is pair
Three-phase brushless motor position of stator is detected.By back-emf position detection, the accurate commutation of brshless DC motor is controlled,
STM32 produces the controllable PWM waveform driving brshless DC motor of duty cycle, drives pumping for water pump.
STM32 controllers need to realize maximal power tracing control, the control of brshless DC motor, water pump slide system control,
The anti-spilled control of water tank and WIFI module realize intelligent terminal remotely monitoring etc..
According to the disclosure and teachings of the above specification, the utility model those skilled in the art can also be to above-mentioned reality
Apply mode make a change and modification.Therefore, the utility model is not limited to embodiment disclosed and described above, right
Some modifications and changes of the utility model should also be as falling into the scope of the claims of the utility model.In addition, to the greatest extent
Some specific terms have been used in pipe this specification, but these terms are merely for convenience of description, not to the utility model
Form any restrictions.
Claims (6)
1. a kind of intelligent all-weather photovoltaic water pump water system, it is characterized in that including photovoltaic array, DC/DC converters, storage battery,
STM32 controllers, direct current generator, water pump, liquid level sensor, water storage device and WIFI module, it is characterised in that further include detection
Protect circuit, back-emf sensing circuit, isolation circuit, drive circuit；The photovoltaic array is connected and supplies with DC/DC converters
Supply electricity to direct current generator and storage battery, the output terminal access isolation circuit of the STM32 controllers, the isolation circuit it is defeated
Go out to terminate the input terminal of drive circuit, the output of drive circuit termination brshless DC motor, the water pump is by pipeline by water
It is delivered in water storage device, detection protection circuit includes voltage detecting circuit, current detection circuit and water level detecting electricity
Road, detection protection circuit, back-emf sensing circuit, WIFI module and STM32 controllers connect.
A kind of 2. intelligent all-weather photovoltaic water pump water system according to claim 1, it is characterized in that the power supply mould
Formula has the function of intelligent selection, i.e., in the case where having storage battery and having photovoltaic cell, automatically selects power supply mode and to storing
Battery carries out Charge Management.
A kind of 3. intelligent all-weather photovoltaic water pump water system according to claim 1, it is characterized in that the STM32 controls
Device processed is by the detection to battery charging current and voltage, to select suitable charge control pattern STM32 controllers at the same time
Judge the working status of photovoltaic cell, to decide whether to carry out MPPT controls, by adjusting the duty cycle of pwm signal, adjust DC-
DC converters control the size of output voltage, output voltage is worked on maximum power point voltage, obtain highly efficient power output.
A kind of 4. intelligent all-weather photovoltaic water pump water system according to claim 1, it is characterized in that the water level inspection
Survey has the detection of the high-low water level of water source level sensing and water tank, and water source level sensing detects water source level condition in real time, with
Anti- long-time idle running causes to damage to pump motor, and the high-low water level detection of water tank is used for the too low low water level of touching of water level and senses
During device, water level is excessive sends when touching high water level sensor and start, stop water supply information and give STM32 controllers.
A kind of 5. intelligent all-weather photovoltaic water pump water system according to claim 1, it is characterized in that the motor is adopted
With DC brushless motor, pump uses centrifugal pump.
A kind of 6. intelligent all-weather photovoltaic water pump water system according to claim 1, it is characterized in that the WIFI moulds
Block wireless connection intelligent terminal, is monitored for the water of water pump and information about power to be sent to intelligent terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721161623.2U CN207333212U (en) | 2017-09-08 | 2017-09-08 | A kind of intelligent all-weather photovoltaic water pump water system |
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| CN201721161623.2U CN207333212U (en) | 2017-09-08 | 2017-09-08 | A kind of intelligent all-weather photovoltaic water pump water system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058121A (en) * | 2018-08-30 | 2018-12-21 | 深圳市迈凯诺电气股份有限公司 | A kind of photovoltaic intelligent collection control water pumping system and control method based on MPPT algorithm |
| CN111674271A (en) * | 2020-05-08 | 2020-09-18 | 苏州工业园区职业技术学院 | Vehicle-mounted photovoltaic charging system of electric automobile |
-
2017
- 2017-09-08 CN CN201721161623.2U patent/CN207333212U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109058121A (en) * | 2018-08-30 | 2018-12-21 | 深圳市迈凯诺电气股份有限公司 | A kind of photovoltaic intelligent collection control water pumping system and control method based on MPPT algorithm |
| CN109058121B (en) * | 2018-08-30 | 2023-12-29 | 深圳市迈凯诺电气股份有限公司 | Main machine fault and disconnection control method and utilization rate method of light Fu Zhineng centralized control water lifting system based on MPPT algorithm |
| CN111674271A (en) * | 2020-05-08 | 2020-09-18 | 苏州工业园区职业技术学院 | Vehicle-mounted photovoltaic charging system of electric automobile |
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